| LI Wen-qi,CHEN Wen-ge,CUI Xiao-juan,JU Jun-wu.Research Progress on Preparation, Modification and Application of Graphene Oxide Membrane[J],50(2):199-210 |
| Research Progress on Preparation, Modification and Application of Graphene Oxide Membrane |
| Received:June 13, 2020 Revised:January 10, 2021 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2021.02.020 |
| KeyWord:graphene oxide membrane surface modification separation characteristics application |
| Author | Institution |
| LI Wen-qi |
School of Materials Science and Engineering, Xi’an University of Technology, Xi’an , China |
| CHEN Wen-ge |
School of Materials Science and Engineering, Xi’an University of Technology, Xi’an , China |
| CUI Xiao-juan |
Xi’an Libang Medical Electronics Co., Ltd, Xi’an , China |
| JU Jun-wu |
Xi’an Libang Medical Electronics Co., Ltd, Xi’an , China |
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| Abstract: |
| Graphene oxide (GO), a derivative of graphene, can be stacked layer by layer to form nanochannels between layers, so it can be applied to selective separation of substances, which has attracted wide attention of researchers in the field of membrane materials. Based on the unique two-dimensional structure of graphene oxide, in order to explore its application in the membrane separation field, the preparation technology and modification of graphene oxide separation membrane are briefly summarized. Among the preparation methods of graphene oxide separation membrane, there are various research reports on the preparation technology. Several common preparation methods, such as spin coating, vacuum filtration, dip coating, spray coating, layer-by-layer self-assembly, etc., are introduced, and the research results of the corresponding preparation methods are compared and analyzed. Graphene oxide materials are mainly modified by doping or surface functional gene group grafting, and surface modification can improve the selectivity and water flux of GO membrane to some ions or enhance the mechanical stability and anti-pollution of the membrane. Graphene oxide membrane has shown excellent separation characteristics in oil-water separation, sewage purification, seawater desalination, gas separation, heavy metal ion separation, and other fields. Finally, the future development and challenges of graphene oxide separation membranes at the above three levels are prospected. |
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